栏目

怒江紫菀Aster salwinensis Onno

怒江紫菀Aster salwinensis Onno

别名:露琼;

科名:菊科 Compositae

属名:紫菀属 Aster

《中国植物志》第74卷219页
  66. 怒江紫菀 图版55:6-10
  Aster salwinensis Onno, Biblioth. Bot. 106: 74, t. IB. 2, 1932.——Hand. -Mazz., Symb. Sin. 7: 1090, 1936, et in Notizbl. Bot. Gart. u. Mus. Berl. -Dahl. 13: 626, 1937; Griers. in Not, Roy. Bot. Gard, Edinb. 26: 127. 1964; S. Y. Hu in Quart. Journ. Taiwan Mus. 18: 298. 1965.
  多年生草本,根状茎细长,有时具匍枝。茎斜升稀直立,高4-25厘米,生于莲座状叶丛的外侧,纤细,被开展的长毛,基部为枯叶残片所围裹。莲座状叶倒卵状匙形,长3-9厘米,宽0.6-1.5厘米,下部渐狭成具翅的柄,边缘有小尖头状或疏齿或近全缘,顶端圆形或稍凹,有小尖头;茎部叶多少直立,长圆形、倒卵形或卵圆披针形,长1-4厘米,宽0.2-1.5厘米,稍有齿或全缘,顶端圆形或渐尖,基部圆形或楔形,半抱茎,无柄;全部叶质薄,下面沿脉及上面被长毛,常有缘毛,中脉在下面凸起,侧脉约3对。头状花序径2-3厘米,在茎端单生;总苞半球形,径0.8-1.5厘米;总苞片2层,近等长,线状披针形或倒披针形,长8-10毫米,宽1-1.5稀2.2毫米,顶端渐尖,草质,边缘宽膜质,有显明的中脉,顶端和沿脉有密或疏粗毛,内层有时无毛。舌状花15-30个,管部长2-2.5毫米;舌片蓝紫色稀白色,长10-15毫米,宽2-3毫米;管状花黄色,长5-6毫米,管部长1.5-2.5毫米,裂片长1-1.5毫米,常带紫褐色,近无毛,花柱附片长0.75毫米。冠毛2层,内层污黄色,长4-6毫米,外层常少数,白色,毛状稀膜片状,长1-1.5毫米。瘦果狭倒卵形,长4毫米,宽1.5毫米,褐色,扁,有2-4肋,无毛或上部有毛。花期7-9月,果期8-10月。
  产于云南西北部(德钦、贡山、维西等)、四川西南部(木里等)、西藏东部(昌都地区南部、察瓦龙等)。生于高山山坡草地或石砾地。海拔3300-4570米。也分布于缅甸东北部。
  此种的总苞片边缘宽膜质,与狗舌紫菀 (A. senecioides Franch.) 略相似,但与后者似无亲缘关系。此种与狗舌紫菀曾被列入异毛亚组的宽膜系 (ser. Marginati Onno),常有2层冠毛,但外层极少数(长1-1.5毫米),毛状,稀膜片状,且有时外层冠毛并不存在。且此种与具单层冠毛的种如匍生紫菀 (A. stracheyi Hook. f.) 及天全紫菀 (A. tientschwanensis Hand. -Mazz.) 等显然更为接近,故以列入同毛亚组比较适宜。
形态特征:多年生草本,根状茎细长,有时具匍枝。茎斜升稀直立,高4—25厘米,生于莲座状叶丛的外侧,纤细,被开展的长毛,基部为枯叶残片所围裹。莲座状叶倒卵状匙形,长3—9厘米,宽o.6一1.5厘米,下部渐狭成具翅的柄,边缘有小尖头状或疏齿或近全缘,顶端圆形或稍凹,有小尖头;茎部叶多少直立,长圆形、倒卵形或卵圆披针形,长1—4厘米,宽o.2—1.5厘米,稍有齿或全缘,顶端圆形或渐尖,基部圆形或楔形,半抱茎,无柄;全部叶质薄,下面沿脉及上面被长毛,常有缘毛,中脉在下面凸起,侧脉约3对。头状花序径2—3厘米,在茎端单生;总苞半球形,径0.8—1.5厘米;总苞片2层,近等长,线状披针形或倒披针形,长8—10毫米,宽1—1.5稀2.2毫米,顶端渐尖,草质,边缘宽膜质,有显明的中脉,顶端和沿脉有密或疏粗毛,内层有时无毛。舌状花15—30个,管部长2—2.5亳米;舌片蓝紫色稀白色,长10—15毫米,宽2—3毫米;管状花黄色,长5—6毫米,管部长1.5—2.5毫米,裂片长1—1.5毫米,常带紫褐色,近无毛,花柱附片长0.75毫米。冠毛2层,内层污黄色,长4—6毫米,外层常少数,白色,毛状稀膜片状,长1—1.5毫米。瘦果狭倒卵形,长4毫米,宽1.5毫米,褐色,扁,有2——4肋,无毛或上部有毛。花期7一9月,果期8—10月。
产地分布:产于云南西北部(德钦、贡山、维西等)、四川西南部(木里等)、西藏东部(昌都地区南部、察瓦龙等)。生于高山山坡草地或石砾地。海拔3300—4570米。也分布于缅甸东北部。
本种提示:此种的总苞片边缘宽膜质,与狗舌紫菀(A.SenecioidesFranch.)略相似,但与后者似无亲缘关系。此种与狗舌紫菀曾被列入异毛亚组的宽膜系(ser.MarginatiOn·no),常有2层冠毛,但外层极少数(长l一1.5毫米),毛状,稀膜片状,且有时外层冠毛并不存在。且此种与具单层冠毛的种如匍生紫菀(A.StracheyiHook。F.)及天全紫菀(A.TientschwanensisHand.·Mazz.)等显然更为接近,故以列入同毛亚组比较适宜。
参考文献:AstersalwinensisOnno,Biblioth.Bot.106:74,t.IB。2,1932.——Hand.,Mazz·,Symb。Sin.7:1090,1936,etinNotizbl.Bot.Gart.U.Mus.Berl.·Dahl-13:626,1937;Griers.InNot,Roy·Bot.Gard,Edinb.26:127.1964;S.Y.HuinQuart.Journ.TaiwanMus.18:298.1965.

《Flora of China》 Vol. 20-21 (2011)
Aster salwinensis  Onno Biblioth. Bot. 26(Heft 106): 74. 1932.
怒江紫菀   nu jiang zi wan
Herbs, perennial, 4-24 cm tall; rhizomes long, slender, sometimes with short stolons. Stems ascending, rarely erect, sparsely to moderately villous, eglandular. Leaves basal and cauline; cauline leaves reduced upward, sometimes abruptly so, thin, glabrous, eglandular, abaxial veins sparsely pilose, adaxial veins also moderately pilosulose, margin serrate to serrulate or entire (uppermost leaves), midvein abaxially prominent, ciliate, apex mucronate; basal leaves present at anthesis, sometimes marcescent; basal and lower cauline leaves broadly to narrowly winged petiolate (petiole to 2 cm); blade obovate to oblanceolate, 0.5-4 × 0.3-1.5 cm, base attenuate, apex rounded; cauline leaves ± erect, sessile, obovate to ovate or ovate-lanceolate, 1-2.5 × 0.9-3 cm, base rounded or cuneate, subclasping, apex rounded to acute. Capitula terminal, solitary, often subtended by a leaflike bract, 2-3 cm in diam. Involucres hemispheric, 5-9 mm; phyllaries 2- or 3-seriate, subequal, often squarrose, linear-lanceolate, 8-10 mm, leaflike, margin broadly scarious, erose, eciliate, midvein conspicuous proximally, apex acuminate, purplish distally; outer phyllaries 1-1.8 mm wide, abaxially villous proximally to sparsely to moderately so distally, eglandular; inner phyllaries 0.6-1 mm wide, sparsely villous. Ray florets 11-30, blue to blue-purple, rarely white, tube sparsely hairy apically, lamina 7-12 × 1-2.3 mm, glabrous, eglandular; disk florets yellow, 4.5-5.5 mm, limb funnelform, 3-3.5 mm, glabrous, lobes spreading, narrowly triangular, 1-1.3 mm, often tinged purple-brown, glabrate. Achenes brown, narrowly obovoid, compressed, ca. 4 mm, strigose distally, eglandular, 3- or 4-ribbed. Pappus 4-seriate, straw-colored to brownish, with few bristles barbellate throughout; outermost series of slender bristles or narrow scales 0.7-1 mm; outer series of slender bristles, 2-3.5 mm; inner bristles 3.5-4 mm, acute; innermost bristles 4-4.5(-5) mm, weakly clavate. Fl. Jul-Sep, fr. Aug-Oct.
Alpine meadows on slopes or on rocks, openings in Rhododendron-bamboo thickets; 3300-4600 m. SW Sichuan, E Xizang, NW Yunnan [NE Myanmar].

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